Kernrechtsfrage
Whether the dispute was governed by federal or cantonal law, so that federal appeal jurisdiction existed.
Extrahierter Entscheid
The claim concerned a mortgage-secured debt and the alleged personal liability for the unpaid balance, both governed by cantonal law; therefore no federal jurisdiction existed.
Extrahierte Begründung
The bank had originally asserted a mortgage-secured claim and was admitted as such. Rights and consequences relating to mortgage-secured claims, including whether the debtor is personally liable for the deficiency, are determined by cantonal law. Only if the instrument were a pledge would federal law apply, but that was not the case.